With judges Russell Peters, Roseanne and Keenen Ivory Wayans and host JB Smoove, Last Comic Standing made its triumphant return last night to NBC. And this time, with the guidance of executive producer Wanda Sykes, Last Comic Standing is being done right. In year’s past NBC went to great lengths in order to perpetuate the idea that all of the comedians participating were “up and coming,” whether they were in